Here is my weekly weather quiz question. What is a “Tornado Family “?
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The Jet stream is still sending cold air southward into the Pacific Northwest producing cold overnight temperatures and cooler than normal high temperatures. The graphics for days 1-3 show no frontal systems. The graphics for days 3-7 Friday through Tuesday show no serious frontal activity over the Pacific Northwest until a cold front pushes through Saturday, then surface high pressure takes over next Monday.
Note: Ski Report: Willamette Pass Ski announced it is open now for early season skiing every day of the week starting Tuesday, Hoodoo will be opening open 9am til 4pm December 5-8., Mt. Ashland announced opening day will be Friday December 6th. Check their Web sites for specific mountain conditions and hours of operation.
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ADVISORIES:
- AN AIR STAGNATION ADVISORY IS IN EFFECT UNTIL 4 AM THURSDAY FOR THE WEST CENTRAL WILLAMETTE VALLEY, THE EAST CENTRAL WILLAMETTE VALLEY, THE BENTON COUNTY LOWLANDS, THE LINN COUNTY LOWLANDS, THE LANE COUNTY LOWLANDS.
- A FREEZING FOG ADVISORY IS IN EFFECT UNTIL NOON WEDNESDAY FOR THE EAST CENTRAL WILLAMETTE VALLEY, THE BENTON COUNTY LOWLANDS, THE LINN COUNTY LOWLANDS, THE LANE COUNTY LOWLANDS.
- A FREEZING FOG ADVISORY IS IN EFFECT UNTIL 11 AM WEDNESDAY FOR CENTRAL OREGON.
- A DENSE FOG ADVISORY IS IN EFFECT UNTIL 11 AM MST TODAY IN VALLEYS FOR THE OREGON LOWER TREASURE VALLEY.
- AN AIR STAGNATION ADVISORY IS IN EFFECT UNTIL 5 PM MST SATURDAY IN VALLEYS FOR THE OREGON LOWER TREASURE VALLEY.
- AN AIR STAGNATION ADVISORY IS IN EFFECT UNTIL 4 AM THURSDAY FOR THE NORTH OREGON COAST RANGE LOWLANDS, THE CENTRAL OREGON COAST RANGE LOWLANDS, THE LOWER COLUMBIA RIVER, THE TUALATIN VALLEY, THE WEST CENTRAL WILLAMETTE VALLEY, THE EAST CENTRAL WILLAMETTE VALLEY, THE BENTON COUNTY LOWLANDS, THE LINN COUNTY LOWLANDS, THE CLACKAMAS COUNTY CASCADE FOOTHILLS, THE THE CASCADE FOOTHILLS OF MARION AND LINN COUNTIES, AND THE LANE COUNTY CASCADE FOOTHILLS.
- AN AIR STAGNATION ADVISORY IS IN EFFECT UNTIL 4 PM FRIDAY FOR CENTRAL DOUGLAS COUNTY, EASTERN CURRY COUNTY AND JOSEPHINE COUNTY, JACKSON COUNTY, THE KLAMATH BASIN, NORTHERN AND EASTERN KLAMATH COUNTY, AND WESTERN, CENTRAL, AND EASTERN LAKE COUNTY.
- AN AIR STAGNATION ADVISORY IS IN EFFECT UNTIL 5 PM MST SATURDAY IN VALLEYS FOR HARNEY COUNTY, BAKER COUNTY. AND MALHEUR COUNTY.
HEALTH ADVISORIES:
- A PERMANENT HEALTH ADVISORY REMAINS IN EFFECT FOR THE SOUTH UMPQUA RIVER BAR. POOLS IN THE BEDROCK ALONG THE RIVERS EDGE ARE KNOWN TO DEVELOP BLUE-GREEN ALGAE (CYANOBACTERIAL) BLOOMS THAT CAN BE HARMFUL TO PETS AND PEOPLE IF ACCIDENTAL INGESTION OCCURS. SIGNS HAVE BEEN POSTED ALONG SEVERAL ACCESS AREAS ALONG THE RIVER.
Forecast for the Southern and lower Mid Willamette Valley including Eugene-Springfield and Albany-Corvallis:
- Cloudy with areas of dense evening fog, widespread dense freezing fog late tonight,
- Widespread AM dense fog with areas of dense freezing fog, cloudy and a bit warmer Wednesday, mostly cloudy with patchy fog Wednesday night,
- Mostly cloudy with patchy AM fog and a slight (20%) chance of rain, a mix of clouds and sun and a bit warmer Thursday afternoon, mostly cloudy at night,
- Mostly cloudy and a bit warmer Friday, then cloudy with a (40%) chance of rain Friday night.
- lows 30-43 highs 45-52.
- Mostly cloudy and a bit warmer with rain Saturday, rain likely (70%) Saturday night,
- Mostly cloudy with AM rain likely (70%), a mix of clouds and sun and a bit cooler with rain likely (70%) Sunday afternoon, mostly cloudy with a (40%) chance of rain at night,
- Mostly sunny and a bit cooler Monday, partly cloudy in the evening, mostly cloudy late Monday night,
- Then a mix of clouds and sun and a bit cooler Tuesday.
- highs 53-46 lows 40-32. (seasonal averages high 48 low 35)
Your College Football Weather Forecast:
Big 1G Championship Game-Saturday December 7 th:
Ducks vs Penn State Nittany Lions at Lucas Oil Stadium, Indianapolis, Indiana- Game time: 5:00 pm PST- Preliminary weather Forecast: Clear to Partly cloudy 36 degrees, cooling as the game continues.
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HOME WOOD HEATING ADVISORY:
Eugene & Springfield: YELLOW – Caution is advised, be prepared to stop burning wood if the advisory changes to Red.
Oakridge and Westfir: YELLOW – Caution is advised, be prepared to stop burning wood if the advisory changes to Red.
The use of pellet stoves is always allowed.
Data courtesy of Lane Regional Air Protection Agency (LRAPA.org)
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Forecast for the Umpqua Valley including Roseburg:
- Clear with areas of fog late tonight,
- Areas of AM fog, sunny and a bit warmer Wednesday, clear in the evening, mostly cloudy with patchy fog late Wednesday night,
- Mostly cloudy with patchy AM fog, partly cloudy and a bit warmer Thursday afternoon, partly cloudy at night,
- Mostly cloudy and a bit warmer Friday, then mostly cloudy with a good (50%) chance of rain Friday night.
- lows 34-43 highs 50-56.
- Mostly cloudy and a bit cooler with rain likely (70%) Saturday, a good (50%) chance of rain Saturday night,
- Mostly cloudy and a bit cooler with a (40%) chance of rain Sunday, a slight (20%) chance of evening rain, just mostly cloudy late at night,
- Partly cloudy and a bit cooler Monday, partly cloudy Monday night,
- Then partly cloudy Tuesday.
- highs 54-48 lows 42-34. (seasonal averages high 49 low 38)
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Forecast for The South Oregon Coast Including Coos Bay and North Bend:
- Clear tonight,
- Sunny and a bit warmer Wednesday, partly cloudy in the evening, mostly cloudy Wednesday night,
- Mostly cloudy and a bit warmer with a slight (20%) chance of coastal rain Thursday while mostly cloudy inland with a slight (20%) chance of AM rain and partly cloudy inland Thursday afternoon, mostly cloudy in the evening, partly cloudy late at night,
- Mostly cloudy and a bit warmer Friday, cloudy with a slight (20%) chance of evening rain, then rain likely (70%) late Friday night.
- lows 33-46 highs 54-62.
- Mostly cloudy and a bit cooler with rain likely (70%) Saturday, colder with a good (50%) chance of rain Saturday night,
- Mostly cloudy and a bit cooler with a (40%) chance of rain Sunday and in the evening, just partly cloudy at night,
- Some AM clouds, sunny and a bit cooler Monday, mostly clear in the evening, partly cloudy Monday night,
- Then partly cloudy Tuesday.
- highs 59-55 lows 42-36. (seasonal averages high 54 low 41)
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Forecast for the Northern Oregon Cascades including the Cascades in Lane County:
- Mostly clear tonight,
- Sunny and a bit warmer Wednesday, clear in the evening, partly cloudy Wednesday night,
- Mostly sunny with a slight (20%) chance of rain Thursday, partly cloudy at night,
- Mostly sunny start, mostly cloudy Friday afternoon, then mostly cloudy with a slight (20%) chance of rain Friday night.
- free air freezing level 11,000 ft. tonight and Wednesday, 11,000 ft. falling to 10,000 ft. Wednesday night, snow level 6,500 ft. Thursday, free air freezing 9,000 ft. rising to 10,000 ft. Thursday night, 12,000 ft. Friday, then snow level above 8,000 ft. Friday night.
- lows 29-32 cooling to 30 Thursday night warming to 36 Friday night highs near 47.
- Mostly cloudy and a bit cooler with rain Saturday, mostly cloudy with rain and snow likely (70%) Saturday night,
- Mostly cloudy with snow and rain likely (70%) and a bit cooler Sunday, mostly cloudy with a good (50%) chance of snow and rain late at night,
- Mostly sunny and a bit warmer with a slight (20%) chance of rain and snow Monday, partly cloudy in the evening, mostly clear late at night,
- Then mostly sunny and a bit warmer Tuesday.
- snow level above 8,000 ft. Saturday, 5,000 ft. Saturday night, 3,500 ft. Sunday through Monday,free air freezing level 5,000 ft. Monday night, then 9,000 ft. Tuesday.
- highs 44-32 warming to 39 Tuesday lows 26-22.